Corrugating machine



1927. 5 D. v. EDWARDS CORRUGATING MACHINE Filed June 7, 1924 6 Sheets-Sheet 1 I INVENTDR l9 Apnl 27 D. v. EDWARDS connuemne mourns Fiied June 7, 1924 e Sheets-Sheet 5 April 5 DQV/EDWARDS CORRUGATING MACHINE .Filed June 7, 1924 s Sheets-Sheet 4 INVENTOR k ATTORNEYS Apnl' 2 D. v. EDWARDS CORRUGATING' MACHINE Filed June 7, 1924 6 Sheets-Sheet 5 BY M.

m M A'rmsys 192 I Apnl 5 D. v. EDWARDS I CORRUGATING MACHINE Filed Jun? 7, 1924 6 Sheets-Sheet 6 2 z INTOR I Patented Apr. 5, 192? DONALD v. EDWARDS, or TROY, NEW YoRK,AssIe1\ToR rorirrsnuRen TRANSFORMER COMPANY, A CORPORATION or rnnrtsYLW-mm; s

CORRUGATING MACHliNE.

I Application filed June 7', 1924. Serial No. 718,4L26.

This invention relates to apparatus for corrugating and particularly to a machine wherein material such as sheet metal is formed into successive corrugat-ions'between' relatively movable bending dies.

One object of the invention isto provide a machine in which the corrugations are formed by bending of the metal around a die surface Without stretching or distorting the metal in any way and my invention is particularly adaptedto form deep corrugat ons in sheet metal without stretching or distorting the metal.

Another object of the invention 1s to provide a corrugating machine which'is simple. rugged and economical in'construction and operation. I M

Other objects and advantages will appear from the following description taken in connection withthe accompanying drawing in which I v Fig. 1 is a vertical sectional view talrenon the line 11 of 4L and shows one embodiment of my invention.

Fig. 2 is an end .elevation of the machine shown in Fig. 1 taken from the left of 1.

Fig. 8 is an end elevation of the same talren from the right of Fig. 5.

Figs. 4 and 5 constitute together a side elevation of the machine shown in Fig. 1.

Fig. 6 is a detail sectional view taken on the line, 66 of Fig. 2.

Figs. 7 to 10 are vertical sectional views of the holding and forming dies in successive positions illustrating diagrammatlcally the method involved in the corrugatmg operation. v y j Referring to Figs. 1 to 5, 10 represents the supporting frame of the machine. Mount-v ed in bearings 11 in the framelO is a shaft 12 having secured thereto a pulley13 adapted to be driven from afsuitable source of power not shown. Secured to theshaft 12 is a pinion 1 1 which meshes with an upper gear wheel 16 mounted upon' a shaft 17 carried by the frame 10 and with a lower gear wheel 18 mounted upon a shaft 19 likewise carriedby the frame 10. Gears 16 and 18 are adapted to rotate 'freely on their respective shafts but may be coupled to these shafts by means of clutches 2-1 and 25 which are operated re: spectively by the endporti'ons 27 and 28 of an oscillating member 29111011111366. on a shaft 31 journaled in abe'arin'g 30 on the frame 10.

hen one of the clutches ismoved bythe member 29 to clutch its gear wheel to the shaft the other clutch is moved to release 7 the {othergear wheel from the other shaft.

A spring pressed pawl 33 adapted to engage notches Satin a member 35 secured to the shaft 31 serves always toforce one or the other of the clutches into-engaging position.

Oscillating member 29 is operated from" an arm 40 secured to shaft 31 by means which 9 will be more fully described hereafter. J

Gear. wheel 16 is adaptedgtobperate. through reduction gearing ll, a gear 42 mounted upon one end of the shaft 43 jour:

naled in the frame '10.; Similar reduction gearing 4:4 operated from the shaft 17 serves 'to drive the other end of the shaft 13. Shaft 43 is formed with cranks 18 to which are se-.

cured by .ineansfof links 49a reciprocating male holding die 50 adapted tov be guided in guide ways 51 carried by the sides off-the frame .10. Extending between the sides of I the frame 10 are two upwardly directeddie members 5 1 and 55 each of substantially. the

same form as the reciprocatingdie 50. The inner opposedfaces otthehdie members 54; and 55' form afemaledie adapted to cooperate with the reciprocatinggmale die 50 to receive andhold a previously formed corrugation-of the metal sheet 52' while the op eration of forming antuljacentv corrugation is beingperformed, Pivotally secured to the outer end of the arm 56 which is secured to ashaft 53 journaled at 58 in abracket 59 carried by the die50, is .a'downwardlyproject-irigforming die 57. -Die 57 is provided with an upwardly extending arm 60 which is pivoted at its upper. endto a counter 1 weighted lever, 61 pivotally mounted at 62 onthe frame 10.; Secured to the shaft 53 is anv operatingv arm 8O havin'gfa bearing surface 81 adapted tobe engaged bya cam 83 tomove the shaft53 and die 57 a'mann er more fully to be described'hereafter.

Adapted to be operated from gear through reducing gearing 70 and 71located at opposite sides of the frame. lO'isa gear 72 journaled in the frame 10. formed onone face with a cam which 15 Gear 72s adapted to engage a roller 75 mounted upon a rack bar 76. 1 Bar 7 6 isformed at itsiipper portionwith a slot'77, adapted to receivefa pin 78 projecting from the cam 7 3 and in alinement with the axis of the gear72.

rack bar 76 serves to actuate a gear 79 mounted on I a shaft; 90, journaledin vthe frame lO. Shaft 90is provided with arms 91 which are pivotally'secured to and actuate an upwardly extending forming die 92. Die 921s providedflwith outwardly extending arms 94 which are pivotally secured at their outer endsjtothe endsof'1inks'95. The inner ends I of links 95 are secured to the shaft 96 jourxSecured to one end" of the shaft 96 is a naledintheframe of the machine gear/97 adapted tobe actuated from gear "'79 through pinion 99. Gear wheel 72 like- .wise carries a cam 83 which cam is adapted to engage the-arm -80-for the-purpose of ac- '"tuating the die57. r

" 1 On; the outer face of; gear42 is lug 102 and "a similar lug 1.93 is carried by the gear i 104: of the reducinggearing 79. "Lugs 192 .is gui de'd in: its movementiii-suitable brackand 103 are adapted to'move' the actuating bar} l05 f or the clutches 24and'25; Bar 105 ets' 106-" in the frame and it actuatesa yoke 1'O8;;carried by the arm 19 securedflto the shaft 311 "Assuming that "the bar'105 is in the position shown in jFig. 2- of the drawing the c'luteh 24 will at this timeserve to connect the gear .16 to the shaft 17 and the gear 412 willbe -rotating in aclockwise directionfilhis condition of operation will be maintained until the lug-192 engages the 1 upper end of the bar 105, when thisbar will be forced downwa'rdlyandthe member 29 oscillated to disengage the gear16 from the shaft 17. Thespri'n'g pawl 33 will complete the motio'nwofth'e: member 29in this direction to afposition-in which the clutch secures the gear :18 to the shaft 19. Upon disengagement of the clutch 24 the' gear 42 will cease to rotate; the momentum of this gear being however suflicient to cause the lug 42' tofmo've slightly beyond theupper end of the bar 105;, Uponengagement of theclut'ch 25 the gear 104: will begin rotating and will continue ,to. rotate through one complete 'revolutionat which time the lug 103 will engage the lower end of the bar 105' and oscillate the member 29 in the oppo site direction which. will result in a disengagement of the clut'cli25 and, areengagement A l of the clutch 24. It will thus be. seen that i the gear 42 willmake one complete revolu tionand will then'stop5whereupon the gear 72 will make onecomplete revolution and stop; these revolutions continuing alternatelydu'ring theoperation of the machine.

In, the 'operation' of bending the metal 52 ,it will be assumed that one corrugation has been "formed and this corrugation .is insalted; between the innerfaces of the'die members-54 and 55.. v j 50,.545"55,"57 and" 92 in therelative posi- Starting' with the dies tions shown inFig. l, the gear 12 will be rotatin'g tin a 'clo'f :wise, direction as viewed 111 Fig. 2 and as a result of this rotation the die will be forced down between the inner faces of the-die members 5% and into a position to hold securely the metal sheet52.

At the same time the die 57 will move downwardly withv the die 50 so that the dies will occupy the relative positions shown 1n Fig. 7. At this time the metal 52 will be held between the die 50 and die members 54 and 55 and will extend rearwardly beneath-a stop 110 mounted on the frame 10.

When the partshave assumed the position shown in Fig. 7 the clutch 24'vvill be disengaged fromthe gear wheel 16 by the engage ment the lug 102 with the upper end of the rod 105 and -the clutch 25 will become engaged, start torotate the gear 42 in a clockwise direction as viewed in Fig. 2.

The lower end of the arm which during rotation ofthe shaft 43 has been moved into engagement with the reentrant portion 111 of the cam 83 will be rotated by thecam upwardly in afoloclrwise direction as viewed in Fig. 3. During this movement the projecting portion 112 of the cam engages the bearing surface 81 of the arm 80. The-hori- Zontal arm 56 will be rotated downwardly *in a clockwise direction and will carry with it the die 57. The die by reason of its piv otal connection with the arm 60 and itsv connection with the balanced lever 61 will be maintained during'this movement in a substantially vertical position. During this downward, curvilinear motion of the die 57 its lower point will engage'the sheet of metal 52 and force the same downwardly bending the metal around the upper tip of the die member 55 to a position shown. in Fig. 8' in which'the sheet 52 is pressed between the outer face of the die member 55 and the adjacent faceof the die 57. At the time the die 57 has reached the position shown in Fig. 8 the outer end, of the arm 80 will have ridden along'the engaging face of the cam untilit has reached the outer cylindricalportion 114 of the cam' surface.

During the time that the die 57 has been 7 portion 116 of the'cam 73 will engage the roller'75 onthe rackbar 7 (land as a re sult the roller will be moved away from the axis of the gear wheel 72 and with it the rackbar 76 which is in mesh with the gear 7 9. As the gear 79 rotates and swings the arm 91 upwardly the die 92 will be moved upwardly in a counterclocljrwise direction, such die remaining however in a substantially vertical position due to the parallel link connection formed by the arms 91 and end of the die57 to a position shown in Fig. 9, in which the metal will be clamped between the adjacent faces of the dies 57 and 92. At the time the dies assume the relative positions shown in Fig. 9 the outermost portion 116 of the cam 73 will be in engagement with the roller 7 and the roller will have been forced to its outermost position. From this time on the roller will move along the portion 117 of the cam the die 92 will be withdrawnfromthe metal 52 to a posi- 'tion shown in dotted line in Fig. 9 in which I position the gear wheel 72 and 104 will have completed one revolution and gear 104 will again be in the position shown in Fig. 2. Just before assuming this position lug 103 on gear 104 will have engaged the bar 105 to shift the clutches 24 and 25 so as to dis connect the gear 18 from the shaft 19 and connect the gear 16 to the shaft 17. The gear 42 will then start rotating in a clockwise direction and first lift the male holding 'die from between the inner faces of the die members 54 and 55. At the same time the die 57 will be withdrawn from the cor rugation which has just been formed in the sheet 52 and when so withdrawn the counterweighted lever 61 will rotate the shaft 58, arms 80 and 56 to the position shown in Fig. 2. The positions of dies 50 and 57 as they are leaving the metal is shown in Fig. 10. When the dies 50 and 57 have been raised sufficiently the operator advances the sheet of metal by lifting thesame and inserting the last formed corrugation between the die members 54 and The continued'rotation ofgthe gear 42 will then again force the dies 50 and 57 downwardlyv and the operation above described will be repeated; Suitable controlling means'may be employed to stop the machine when in a position shown in Fig. 1 to enable the operator to advance the. sheet 52. ".However generally a sufficient time will elapse in normal ope'ra'tionof the machine after the lifting of the dies 50 and 57 to enable the operator to advance the sheet. v

While I have shown the die 50 moved by means of cranks 48 on the shaft 43 in certain-cases it may be advisable to employ cams operated from the gear instead of the cranks 48. hen such cam is employed it will engage a pin or part secured to the die 50 and when the die 50 is in its lower holdingposition such pin or part will preferably engage a cylindrical portion of the cam which is concentric with the axis of the gear 42 so that there will be no tendency to rotate the gear 42 by reason of any upward pressure which may be exerted by the sheet 52 held in the clamping d es or by the upward reaction on the pivotal connection of the arm during the time when thedie '57 isbending the'i'netal- If desired also in addition to providing a cam for operating the die 50, the die 50may be resiliently connected to its operating means or the die members 54 and 55 may be resiliently'supported on the frame so 'as'to provide for the clampingofthesheet under a resilient pressure.

I claim: 1. A corrugatmg machine compris ng sheet clamping die means, movable means for supporting one of the same, two dies which are relatively movable to form half of each cormugation, one of'said latter dies being carried by said supporting means and movable therewith, and a die which is movable to a position to cooperate with one of said first mentioned dies to form the other hrfif of each'corrugation. I

9. In a corrugating machine, clamping dies, means for moving one ofthe same, a die movable relatively thereto and whenever said latter means moves and adapted to cooperate therewith to form half of-each corrugation and a die adapted to cooperate with said movable die to form the [other half of each corrugation. Y I I 3. A corrugating machine comprising clamping meanshaving a movable element,

. I .0 0 A f a stationary forming the, two movable dies f operating upon opposite sides of the mate;

rial tobe corrugatedand means whereby one of saiddies is movable whenever said element moves and adapted to cooperate 0 n e a )l with said stationary die to form one side of each corrugation and the ,otherbeingmovable to cooperate with saidfirst movable die to form the other side of each corrugaj tion.

' 4. An automatic corrugatingmachine com- 7 prising power operated clamping means, power operated bending means including a die pivotally secured to and movable with said clamping means, and controlling means therefor adapted to cause the actuation of saidclamping and bending means periodireciprocating member to clamping position a for actuating said movable forming die to bend the metal about said stationary forming die.

V 7, V metal corrugatingi machine co1npris- 1 ing a reciprocating clamping 1 member, an

arm pivoted'thereto, a. forming die pivotally connected 'to'said arm, means for swinging said arm to actuate said die to form a portion ofa-corrugationpa second movable die "for formingtheremainderlof said corrugation' and means for moving said clamping member 1n one direction to clamp saidmetal and in the opposite direction to release said metal and to move said forming die away from the bent metal.

8. A metal corrugating machine comprising a frame,a reciprocating clamping member, an arm pivoted thereto, a forming die pivota-lly connected tosaid arm, an arm pivvoted to said die and-to saidframe, means for I, swinging said arms to actuate said die to I corrugations.

form one side of .a corrugation, .a movable die adaptedto,cooperate with said forming die for completing the c-rrugation, means for moving said clamping member in one direction to clamp said metal and in the 'opposite direction to release said metal and move saidforming die out of the formed 9. A mach ne forcorrugating sheet material comprising means for holding the sheet,

means for forming one half of a corrugation, and means for completing said corru-' gation, all of sald means being'so arranged whereby the sheet during" said corrugating operations is subjected to a bending action substantially only at the portions thereof which will be finally bent. a p I 10. A machine forcorrugating sheet 1nate rial comprising dies having side faces movactuating said'forming die after a predetermined movement thereof, mcludmg a cam and a cam' follower which is movable With said support into operative relation with said cam.' r

14. A mach ne for corrugating sheet material comprising a forming die, movable and stationary supports, and means for pivotally connecting saiddie to both of said supports thereby to vimpart a predetermined movement to said forming die.

A machine foroorrugating sheet material comprising a forming die,-movable and stationary supports, means for pivotally connecting said die-to' both of said supports, and means for finally actuating said forming die after predetermined movement thereof, including a cam and a camfollowe'r movable with said support, whereby said cam and follower are brought into operative relation. I

16. A machine for corrugating sheet material comprising a forming die movable to ward the sheet from one side thereof, a cooperating forming die movable toward the sheet from the opposite sidethereof, and means foractuating said latter forming die, including links pivotally carrying said die, gears connected to said links for causing oscillation thereof, arack havii'igoperative connection tosaidfgears, and acam for actu-' ating said rack.

DONALD v. EDWARDS.

forming die pivotally supported thereby and '60 movable therewith, and means for finally 

